USN-3855-1: systemd vulnerabilities

Packages

systemd - system and service manager

Details

It was discovered that systemd-journald allocated variable-length buffers
for certain message fields on the stack. A local attacker could
potentially exploit this to cause a denial of service, or execute
arbitrary code. (CVE-2018-16864)

It was discovered that systemd-journald allocated variable-length arrays
of objects representing message fields on the stack. A local attacker
could potentially exploit this to cause a denial of service, or execute
arbitrary code. (CVE-2018-16865)

An out-of-bounds read was discovered in systemd-journald. A local
attacker could potentially exploit this to obtain sensitive information
and bypass ASLR protections. (CVE-2018-16866)

It was discovered that systemd-journald allocated variable-length buffers
for certain message fields on the stack. A local attacker could
potentially exploit this to cause a denial of service, or execute
arbitrary code. (CVE-2018-16864)

It was discovered that systemd-journald allocated variable-length arrays
of objects representing message fields on the stack. A local attacker
could potentially exploit this to cause a denial of service, or execute
arbitrary code. (CVE-2018-16865)

An out-of-bounds read was discovered in systemd-journald. A local
attacker could potentially exploit this to obtain sensitive information
and bypass ASLR protections. (CVE-2018-16866)

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

Ubuntu Release	Package Version
18.10 cosmic	systemd – 239-7ubuntu10.6
18.04 bionic	systemd – 237-3ubuntu10.11
16.04 xenial	systemd – 229-4ubuntu21.15

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References